<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Document</title>
  <link rel="stylesheet" href="./css/bootstrap-v4.6.0.css" />
  <link rel="stylesheet" href="./css/login.css" />
</head>

<body>
  <div class="login-box">
    <div class="form-group">
      <label for="username">Account</label>
      <!-- 账号 -->
      <input type="text" class="form-control" id="username" autocomplete="off" />
      <small id="emailHelp" class="form-text text-muted">The available account is <strong>admin</strong></small>
    </div>
    <div class="form-group">
      <!-- 密码 -->
      <label for="password">Password</label>
      <input type="password" class="form-control" id="password" />
      <small id="emailHelp" class="form-text text-muted">The available password is <strong>123456</strong></small>
    </div>
    <button type="submit" class="btn btn-primary" id="btnLogin">
      Submit
    </button>
  </div>

  <script src="./lib/axios.js"></script>

  <script>

    const btn = document.querySelector('#btnLogin');
    const usernameIpt = document.querySelector('#username');
    const passwordIpt = document.querySelector('#password');

    btn.addEventListener('click', async function () {
      if (usernameIpt.value.trim() === '' || passwordIpt.value.trim() === '') return alert('输入框不能为空')

      const res = await axios({
        url: 'http://ajax-api.itheima.net/api/login',
        method: 'post',
        data: {
          username: usernameIpt.value,
          password: passwordIpt.value
        }
      })
      console.log(res);
    })
  </script>
</body>

</html>